Sanding block



FIG. 1 is a top, front, right side perspective view;

FIG. 2 is a front elevation view;

FIG. 3 is a rear elevation view;

FIG. 4 is a left side elevation view, the right side elevation view being a mirror image;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view. 

CLAIM The ornamental design for a sanding block, as shown and described. 